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BMW Z4 2.5i Steptronic

(2008 model)

Brief specs of 2008 BMW Z4 2.5i Steptronic

2-door 2-seater convertible (cabriolet), petrol (gasoline) 6-cylinder 24-valve straight (inline) engine, DOHC (double overhead camshafts, twin cam), 2494 cm3 / 152.2 cu in / 152.2 cu in, 160.0 kW / 214.6 hp / 214.6 hp @ 6500 rpm / 6500 rpm / 6500 rpm, 250.0 N·m / 184.4 lb·ft / 184.4 lb·ft, automatic 5-speed transmission, rear wheel drive, 222 km/h / 138 mph / 138 mph top speed, consumption 9.5 l/100km / 29.7 mpg-UK / 24.8 mpg-US

units: metric UK US

Basic (general) data

Marque (make)BMWIssued from2008
ModelZ4 2.5i SteptronicIssued until
SerieZ4Number made
Model familyBody construction
Model codeBody designation
ManufacturerBMWCountryDE,ZA

Bodywork

Base platformNumber of doors2
Bodywork typeconvertible (cabriolet)Number of seats2
Bodywork designerCargo capacity (volume)460 l / 16.24 cu ft / 16.24 cu ft
Passenger space (volume)2803 l / 98.99 cu ft / 98.99 cu ftMax. cargo capacity (volume)460 l / 16.24 cu ft / 16.24 cu ft

Dimensions & Weight

Length4100 mm / 161.4 in / 161.4 inTotal (curb) weight1290 kg / 2844 lb / 2844 lb
Width1790 mm / 70.5 in / 70.5 inDry weight
Height1310 mm / 51.6 in / 51.6 inLoad capacity745 kg / 1642 lb / 1642 lb
Wheelbase2500 mm / 98.4 in / 98.4 inGross (max.) weight2035 kg / 4486 lb / 4486 lb
Track frontTowing weight1600 kg / 3527 lb / 3527 lb
Track rearWeight distribution (front)
Ground clearanceFuel capacity55 l / 12.1 UK gal / 14.5 US gal
Length/wheelbase ratio1.64  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)0.3Frontal area (A)1.99 m2 / 21.5 sq ft / 21.5 sq ft (est.)
Aerodynamic coefficient (Cd×A)0.60 m2 / 6.4 sq ft / 6.4 sq ft (est.)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)14.9 kW / 19.9 hp / 19.9 hp (est.)

Engine

Engine CodeTotal number of cylinders6
Engine Typestraight (inline) (Inline, 6 cylinder)Total number of valves24
Engine ManufacturerValves per cylinder4
Engine constructionBore
Fuelpetrol (gasoline)Stroke
Fuel detailsBore/Stroke ratio
Fuel supplyElectronic fuel injection (EFI)Engine displacement2494 cm3 / 152.2 cu in / 152.2 cu in
Engine Main bearingsUnitary capacity
Cam DesignDOHC (double overhead camshafts, twin cam)Compression ratio10.5 : 1
SumpwetMax. output power160.0 kW / 214.6 hp / 214.6 hp at 6500 rpm / 6500 rpm / 6500 rpm
AspirationMax. torque250.0 N·m / 184.4 lb·ft / 184.4 lb·ft at
Compressor typeMaximum rpm
IntercoolerMax. net output (power at the wheels)64.0 kW / 85.8 hp / 85.8 hp (est.)
CoolantwaterSpecific output64.2 kW/l / 1.410 bhp/cu in / 1.410 bhp/cu in
Catalytic converterSpecific torque100.2 N·m/l / 0.88 lb·ft/cu in / 0.88 lb·ft/cu in

Transmission

Transmission typeautomaticNumber of gears5
Wheel driverear wheel driveTop gear (drive) ratio
  Final gear (drive) ratio

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed222 km/h / 138 mph / 138 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio169.0 kW/ton / 128.0 bhp/ton / 128.0 bhp/ton
Acceleration 0-100 km/hFuel consumption, City (urban)
Acceleration 0-100 mph (160 km/h)Fuel consumption, Road (extra-urban)
Acceleration 80-120 km/h (50-70 mph) in topFuel consumption, Mixed (combined)9.5 l/100km / 29.7 mpg-UK / 24.8 mpg-US
Standing ¼mile time Fuel consumption, Euro
Standing kilometer time CO2 emissions194 g/km / 312 g/mi / 312 g/mi
  Range579 km / 360 mi / 360 mi

Chassis

Engine locationfrontEngine alignmentlongitudinal
SteeringSteering detailsPower assisted steering
Turns lock-to-lockTurning circle11.0 m / 36.1 ft / 36.1 ft
Suspension frontSuspension rear
Wheels frontWheels rear
Tyres front225/45-R17Tyres rear225/45-R17
Brakes frontventilated discBrakes rearventilated disc
Brake diameter frontBrake diameter rear
Brakes detailsABS (anti-lock braking system), EBD (electronic brake-force distribution), ASC (automatic stabilisation control)Braked area

Technical specifications and performance data of BMW Z4 2.5i Steptronic

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